/* ============================================
   TaskFlow Base Styles
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

html {
  font-size: 16px;
  height: 100%;
}

body {
  font-family: var(--font-primary);
  font-size: var(--text-base);
  color: var(--text-primary);
  background: var(--bg-primary);
  line-height: 1.6;
  min-height: 100vh;
  transition: background var(--transition-base), color var(--transition-base);
  overflow-x: hidden;
}

/* ---- Typography ---- */
h1 { font-size: var(--text-4xl); letter-spacing: -0.02em; }
h2 { font-size: var(--text-3xl); letter-spacing: -0.01em; }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }
h5 { font-size: var(--text-lg); }
h6 { font-size: var(--text-base); }

p { color: var(--text-secondary); }

small, .text-small { font-size: var(--text-sm); }
.text-xs { font-size: var(--text-xs); }
.text-muted { color: var(--text-tertiary); }
.text-accent { color: var(--accent); }

.mono { font-family: var(--font-mono); }

/* ---- Links ---- */
a {
  color: var(--accent);
  transition: color var(--transition-fast), opacity var(--transition-fast);
}
a:hover { opacity: 0.85; }

/* ---- Scrollbar ---- */
::-webkit-scrollbar {
  width: var(--scrollbar-size);
  height: var(--scrollbar-size);
}
::-webkit-scrollbar-track {
  background: var(--scrollbar-track);
}
::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: var(--radius-full);
  transition: background var(--transition-fast);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--scrollbar-thumb-hover);
}

/* Firefox */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
}

/* Hide scrollbar by default, show on hover */
.scroll-container {
  overflow-y: auto;
}
.scroll-container::-webkit-scrollbar-thumb {
  background: transparent;
}
.scroll-container:hover::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
}

/* ---- Selection ---- */
::selection {
  background: var(--accent);
  color: #fff;
}

/* ---- Utility Classes ---- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-wrap { flex-wrap: wrap; }
.gap-xs { gap: var(--space-xs); }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.gap-xl { gap: var(--space-xl); }

.w-full { width: 100%; }
.h-full { height: 100%; }
.relative { position: relative; }
.absolute { position: absolute; }
.overflow-hidden { overflow: hidden; }
.pointer { cursor: pointer; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ---- Glass Effect ---- */
.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
}

/* ---- Gradient Texts ---- */
.gradient-text {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---- Divider ---- */
.divider {
  height: 1px;
  background: var(--border-primary);
  border: none;
  margin: var(--space-md) 0;
}

.divider-accent {
  height: 2px;
  background: var(--accent-gradient);
  border: none;
  border-radius: 1px;
}

/* ---- Icon Sizing ---- */
.icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: currentColor;
}
.icon-sm { width: 16px; height: 16px; }
.icon-lg { width: 24px; height: 24px; }
.icon-xl { width: 32px; height: 32px; }